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| Registros recuperados: 713 | |
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| Castro,André Luiz da Costa; Diniz,Aline de Farias; Martins,Ieda Zaparolli; Vendel,Ana Lúcia; Oliveira,Tacyana Pereira Ribeiro de; Rosa,Ierecê Maria de Lucena. |
| This paper presents the results of the first analysis of the natural diet of Hippocampus reidi, one of the most sought after seahorse species in the international aquarium trade. Its main goals were to investigate food items and prey categories consumed by the species, and to discuss feeding strategy and inter and intra-individual components of niche breadth. Data were gathered from October 2005 to September 2006 at the Mamanguape estuary, State of Paraíba, NE Brazil. Food items from seahorses anaesthetized with clove oil were obtained by using a modified version of the flushing method, and were counted and identified to the lowest possible taxonomic level. Specimens were marked and had their height, sex, life and reproductive stage recorded, and then... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Natural diet; Husbandry; Conservation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400012 |
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| Cachera, Marie; Le Loc'H, Francois. |
| The relationships between diversity and ecosystem functioning have become a major focus of science. A crucial issue is to estimate functional diversity, as it is intended to impact ecosystem dynamics and stability. However, depending on the ecosystem, it may be challenging or even impossible to directly measure ecological functions and thus functional diversity. Phylogenetic diversity was recently under consideration as a proxy for functional diversity. Phylogenetic diversity is indeed supposed to match functional diversity if functions are conservative traits along evolution. However, in case of adaptive radiation and/or evolutive convergence, a mismatch may appear between species phylogenetic and functional singularities. Using highly threatened taxa,... |
| Tipo: Text |
Palavras-chave: Adaptive radiation; Conservation; Endangered clade; Evolutionary convergence; Niche conservatism; Phylogenetic signal. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00400/51113/69865.pdf |
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| Sasamori,Márcio Hisayuki; Endres Júnior,Delio; Droste,Annette. |
| ABSTRACTCattleya intermediais an Atlantic Forest species endemic to Brazil that is classed as vulnerable on the list of threatened species. In this study, C. intermedia plantlets were micropropagated in an asymbiotic culture and the influence of different concentrations of sucrose (15, 30, 45 and 60 g L-1, plus a zero sucrose medium) and macronutrient salts (complete Murashige and Skoog (MS) medium and half MS medium (with half-strength macronutrients)) on survival and development of the plantlets was evaluated. In all treatments 100% plantlet survival was achieved. The integrated analysis of height of aerial part, number of leaves per plantlet, fresh mass, number of roots per plantlet and length of the longest root showed that the plantlets exhibited... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Carbohydrate; Conservation; In vitro culture; Orchids; Propagation. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000300292 |
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| SANTOS, S. A.; MAZZA, M. C. M.; SERENO, J. R. B.; ABREU, U. G. P. de; SILVA, J. A. da. |
| Os cavalos introduzidos no Pantanal pelos conquistadores durante a epoca da colonizacao, encontraram na regiao condicoes ambientais propicias para sua multiplicacao. Como consequencia dos processos adaptativos e da selecao natural por mais de dois seculos e com pouca ou nenhuma interferencia antropica, surgiu um tipo adaptado ao meio. Com o desenvolvimento da pecuaria na regiao, o cavalo Pantaneiro constituiu-se num fator de importancia economica e social, tornando-se imprescindivel em trabalhos de gado e no transporte regional. No final do seculo XIX, a raca entrou em declinio principalmente devido a doenca conhecida como Peste das cadeiras e, posteriormente, outras ameacas como cruzamentos indiscriminados com outras racas e, mais recentemente a Anemia... |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Equino; Cavalo pantaneiro; Avaliacao; Manejo reprodutivo e sanitario; Morfologia; Equine; Pantaneiro horse; Conservation; Reproductive management; Evaluation; Genetic; Morphology.; Conservação; Crescimento; Criação; Genética; Pecuária.; Pantanal.. |
| Ano: 1995 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/784346 |
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| NUNES, A. P.; TOMAS, W. M.. |
| Periodicamente o Brasil é visitado por milhares de aves que realizam movimentos sazonais da América do Norte para a América do Sul e vice-versa (Sick 1983, Morrison et al. 1989, Chesser 1994). Dentre as aves que visitam o território nacional, destacam-se aquelas que migram com a proximidade do inverno boreal (Antas 1994). Os migrantes vêm ao Brasil à procura de locais de invernada, onde encontram alimentação farta, propiciando-lhes a continuidade do seu ciclo de vida (Telino Jr. et al. 2003). Estas aves apresentam extraordinária capacidade de percorrer longas distâncias (Hayman et al. 1986; Antas 1989; Morrison et al. 1989; Sick 1983, 1997; Azevedo Jr. et al. 2002, Alerstan et al. 2003). No período de inverno, a baixa oferta de recursos alimentares aliada... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Ave; Migração; Bird; Migration; Conservation; Identification.; Conservação; Identificação.; Pantanal.. |
| Ano: 2004 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811658 |
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| Iverson, Samuel A; Department of Biology, Simon Fraser University; Canadian Wildlife Service, Environment and Climate Change Canada; samuel.iverson@canada.ca; Forbes, Mark R.; Department of Biology, Carleton University; mark_forbes@carleton.ca; Simard, Manon; Nunavik Research Centre, Makivik Corporation, Kuujjuaq; manonsimard@eeyoumarineregion.ca; Soos, Catherine; Science and Technology Branch, Environment and Climate Change Canada; Department of Veterinary Pathology, University of Saskatchewan; catherine.soos@canada.ca; Gilchrist, H. Grant; National Wildlife Research Centre, Environment and Climate Change Canada; grant.gilchrist@canada.ca. |
| Emerging infectious diseases are a growing concern in wildlife conservation. Documenting outbreak patterns and determining the ecological drivers of transmission risk are fundamental to predicting disease spread and assessing potential impacts on population viability. However, evaluating disease in wildlife populations requires expansive surveillance networks that often do not exist in remote and developing areas. Here, we describe the results of a community-based research initiative conducted in collaboration with indigenous harvesters, the Inuit, in response to a new series of Avian Cholera outbreaks affecting Common Eiders (Somateria mollissima) and other comingling species in the Canadian Arctic. Avian Cholera is a virulent disease of birds caused by... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Arctic; Avian Cholera; Common Eider; Conservation; Emerging infectious disease; Inuit; Maxent; Participatory surveillance; Species-habitat model. |
| Ano: 2016 |
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| SABATER,SERGI; ELOSEGI,ARTURO. |
| Rivers are among the most diverse and threatened ecosystems on the Earth, but their conservation is a requisite for sustainable development. Conservation must consider both the structure and the functioning of the elements (usually species), as well as of their ecosystem. Therefore, successful river conservation must go beyond protecting species to protecting entire ecosystems and the processes that give each ecosystem its special characteristics. River conservation has to meet the legitimate aspirations of human populations for clean, readily available supply of water, without compromising the water needs of ecosystems and nature. Therefore, it is essential to take a landscape perspective that incorporates processes occurring in the riverine riparian... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Andean; Biodiversity; Conservation; Ecosystem functioning river. |
| Ano: 2014 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2014000100001 |
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| Travassos Tolotti, Mariana; Filmalter, John David; Bach, Pascal; Travassos, Paulo; Seret, Bernard; Dagorn, Laurent. |
| Recently, declining populations of several pelagic shark species have led to global conservation concerns surrounding this group. As a result, a series of species-specific banning measures have been implemented by Regional Fishery Management Organizations (RFMOs) in charge of tuna fisheries, which include retention bans, finning bans and trading bans. There are both positive and negative aspects to most management measures, but generally, the positive aspects outweigh the negatives, ensuring the measure is beneficial to the resource and its users in the long term. Banning measures are a good first step towards the conservation of pelagic shark species, especially since they improve conservation awareness among fishers, managers and the public. Measures... |
| Tipo: Text |
Palavras-chave: Bycatch; Conservation; Fin trade; Pelagic shark; Tuna fisheries. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00626/73842/73726.pdf |
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| Sousa,Ricardo Firmino de; Venere,Paulo Cesar; Faria,Karina de Cassia. |
| In the state of Mato Grosso, studies aiming to investigate the diversity and richness of bats are still scarce. In the present study, the chiropteran fauna of eastern Mato Grosso (Brazil) was investigated at four sites representing the Cerrado savanna biome with different degrees of anthropogenic impact, in the municipality of Nova Xavantina. Surveys were conducted between January and December, 2010, with a total of 48 nights of mist-netting. A total of 423 bats were captured, representing 25 species distributed in five families. A greater abundance of individuals was recorded at all sites during the rainy season, with considerable variation being observed over the course of the year in species richness and composition, and the abundance of bats. Species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chiroptera; Conservation; Species richness; Diversity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200236 |
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| Castro,Isai Jorge de; Michalski,Fernanda. |
| The varzea forests of the estuary of the Amazon River cover 25,000 km2within the states of Pará and Amapá. The mammals of those forests, especially bats, are still poorly known. Hence, the present study aimed at inventorying the bat species from three localities of a varzea forest in the estuary of the Amazon River. Between November and December 2013, we selected 18 sampling sites in the mouths of three tributaries of the Amazon River: the rivers Ajuruxí, Maracá, and Mazagão. We set up ten mist nets (12 x 3 m) along a 150-m linear transect in each sampling site, in a total sampling effort of 38,888 m2.h. We captured 403 individual bats of 40 species and five families. We recorded the families: Phyllostomidae (n = 31 species), Emballonuridae (n = 6... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chiroptera; Conservation; Biodiversity; Floodable forest. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200206 |
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| Genoways,Hugh H.; Pedersen,Scott C.; Larsen,Peter A.; Kwiecinski,Gary G.; Huebschman,Jeffrey J.. |
| Six species of bats have been previously reported from the Antillean island of Saint Martin/Sint Maarten- Artibeus jamaicensis, Brachyphylla cavernarum, Molossus molossus, Tadarida brasiliensis, Noctilio leporinus, and Myotis nigricans nesopolus. Our field research reported herein documents an additional three species of bats from the island for the first time- Monophyllus plethodon, Ardops nichollsi, and Natalus stramineus. Re-examination of the single voucher of Myotis nigricans nesopolus has led us to exclude this species from the fauna of Saint Martin/Sint Maarten. Based on our field research and the study of specimens housed in museum collections, we present information on the eight species of bats that we have documented as occurring on Saint... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Distribution. |
| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832007000200003 |
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| Registros recuperados: 713 | |
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